Joel and Maria are discussing DNA and cells. Joel - "I think all of the cells in the human body are identical. When cells divide, dont they just make clones of each other?"

Maria - "they can't all be identical. If all my parents sperm and egg cells were identical, wouldn't I be a clone of my sister?"

Who do you think is correct, Joel or Maria?

give me 1 reason why you think that person is right

Explain the doppler effect in terms of frequency, wavelength, and speed.

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600